Rotary bolster for truck or trailer



FIG. 1 is a vertically exploded perspective view of a rotary bolster fortruck or trailer, showing my new design;

FIG. 2 is a top plan view;

FIG. 3 is a side elevational view taken on the line 3--3 in FIG. 2;

FIG. 4 is a side elevational view displaced 90° from that of FIG. 3;

FIG. 5 is a sectional view taken on the line 5--5 in FIG. 4; and,

FIG. 6 is a sectional view to an enlarged scale, the plane of thesection being indicated by the line 6--6 in FIG. 2.

The ornamental design for a rotary bolster for truck or trailer, asshown.